By Zeljko Debelnogic PALE, Bosnia June 29 (Reuters) - NATO and European Union soldiers on Friday raided the house of the wife of Bosnian Serb war crimes suspect Radovan Karadzic, looking for traces of him and the network supporting him. Karadzic, Bosnian Serb leader in the 1992-95 war in which some 100,000 people were killed and who is wanted on charges of genocide by the International Criminal Tribunal for the former Yugoslavia, has been on the run for 10 years. "We are looking for items of interest to ICTY and for information about Karadzic's support network," NATO spokesman Derek Chappell told Reuters by telephone. ICTY's Chief Prosecutor Carla del Ponte told the European Parliament on Tuesday she had no idea where Karadzic was hiding though he had to be somewhere in the Balkans. Chappell said the operation was led by the EU peacekeeping force (EUFOR) with extra back-up from the Bosnian Serb police. A Reuters cameraman said some 30 EUFOR and NATO vehicles blocked entrances to Karadzic's house in Pale, in the mountains east of Sarajevo, while Italian paramilitary carabinieri conducted the search. NATO and EUFOR have raided houses of the Karadzic family on several occasions and even detained his son in 2005, but they have failed to find one of the world's most wanted man. He and his military commander and fellow fugitive Ratko Mladic have both been indicted twice for genocide by the ICTY. There have been no credible reported sightings of Karadzic for several years. The two fugitives were charged over the 43-month siege of Sarajevo and the July 1995 massacre of up to 8,000 Muslims in the eastern U.N. "safe area" of Srebrenica. Two more ethnic Serbs, one from Bosnia and one from Croatia, are also sought by the ICTY to stand war crimes trials.